Ecosystem trends: evidence for agreement between fishers' perceptions and scientific information

Type Article
Date 2008-09
Language English
Author(s) Rochet Marie-Joelle1, Prigent M2, Bertrand Jacques1, Carpentier Andre3, Coppin Franck3, Delpech Jean-Paul3, Fontenelle G2, Foucher Eric4, Mahe KeligORCID3, Rostiaux Emilie3, Trenkel VerenaORCID1
Affiliation(s) 1 : IFREMER, Dept Ecol & Modeles Halieut, F-44311 Nantes 03, France.
2 : Agrocampus Rennes, Pole Halieut, F-35042 Rennes, France.
3 : IFREMER, F-62321 Boulogne Sur Mer, France.
4 : IFREMER, F-14520 Port En Bessin, France.
Source ICES Journal of Marine Science (1054-3139) (Oxford university press), 2008-09 , Vol. 65 , N. 6 , P. 1057-1068
DOI 10.1093/icesjms/fsn062
WOS© Times Cited 50
Keyword(s) Stakeholder interview, Hypothesis testing, Fisher knowledge, Ecosystem approach to fisheries management, Eastern English Channel
Abstract The results of a survey on fishers' perceptions of recent changes in the eastern English Channel ecosystem carried out in 2006 were compared with fishery and bottom-trawl survey data. A hypothesis-testing framework was used, testing the null hypothesis that fishers' statements were true, which permitted evaluation of both agreement and disagreement. Overall good agreement between fishers' statements and scientific data was found, and both sources suggested that the fish community in the Channel is undergoing large changes, among which are decreases in some commercially important species; in addition, a number of human pressures impact the ecosystem. Fishers had an accurate perception of changes and their time-frames, but not necessarily of their causes. They had a greater power than survey data to detect recent changes, showing that fishers' perceptions have great potential as early warning signals.
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Rochet Marie-Joelle, Prigent M, Bertrand Jacques, Carpentier Andre, Coppin Franck, Delpech Jean-Paul, Fontenelle G, Foucher Eric, Mahe Kelig, Rostiaux Emilie, Trenkel Verena (2008). Ecosystem trends: evidence for agreement between fishers' perceptions and scientific information. ICES Journal of Marine Science, 65(6), 1057-1068. Publisher's official version : https://doi.org/10.1093/icesjms/fsn062 , Open Access version : https://archimer.ifremer.fr/doc/00000/4474/